In Quickly-Applied Paste Form
FUSION solders come already ground in their own special flux in the right proportions. Use when putting on front ramps that do not fit contours of barrel perfectly. Also used for joining small parts where chips of steel have been broken or where it is impossible to hold parts “absolutely together” for brazing.
(All #'s sometimes packaged 1 oz. in 2 oz. jar by Manufacturer.)
Big Book Catalog, Issue:68, Page:418
SPECS: Melts at 1220° F. 1 oz. (28 g) jar.